Browsing by Author "Petersen, Ronald L., author"
Now showing 1 - 17 of 17
Results Per Page
Sort Options
Item Open Access ASARCO stable nighttime condition fluid modeling investigation(Colorado State University. Libraries, 1980) Petersen, Ronald L., author; Hisato, M., author; Cermak, Jack E., author; Fluid Mechanics and Wind Engineering Program, College of Engineering, Colorado State University, publisherItem Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (unit 13): predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1977-04) Ayad, Samir, author; Cermak, Jack E., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherItem Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (unit 16): predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1977-03) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherTests were conducted in the Colorado State University environmental wind tunnel facility of the transport and dispersion of the H2S plume emanating from a cooling tower positioned at two locations near Anderson Springs, California. The wind tunnel tests were conducted with a cooling tower and terrain modeled to a scale of 1:1920. The effects of wind direction and wind speed upon the ground-level H2S concentrations in the vicinity of Anderson Springs were established. Data obtained include photographs and motion pictures of smoke plume trajectories and ground-level tracer gas concentrations downwind of the cooling tower.Item Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (unit 18): predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1977-09) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherTests were conducted in the Colorado State University environmental wind tunnel facility of the transport and dispersion of the H2S plume emanating from a cooling tower (Unit 18) positioned at two locations near Anderson Springs, California. The wind tunnel tests were conducted with a cooling tower and terrain modeled to a scale of 1:1920. The effects of wind direction and wind speed upon the groundlevel H2S concentrations in the vicinity of Anderson Springs were established. Data obtained include photographs and motion pictures of smoke plume trajectories and ground-level tracer gas concentrations downwind of the cooling tower.Item Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (unit 19): predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1978-09) Cermak, Jack E., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherTests were conducted in the Colorado State University wind tunnel facility of the transport and dispersion of H2S plumes emanating from cooling towers positioned at three locations in the Geysers Geothermal Area. The wind tunnel tests were conducted with the cooling towers and terrain modeled to a scale of 1:1920. The first phase of the testing was conducted in the Environmental Wind Tunnel under neutral stratification. Ground level concentrations were measured in the vicinity of Anderson Springs and Whispering Pines for two wind directions and four wind speeds. The second phase of the testing was conducted outside the wind tunnel in a specially enclosed area. Nighttime drainage flow conditions were simulated by cooling the terrain. Concentration measurements in the vicinity of Anderson Springs were obtained as well as the velocity and temperature distributions of the resulting flow. A complete description of the test methodology, concentration measurements and flow visualization is included in the report.Item Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (unit 20): predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1980-09) Petersen, Ronald L., author; Cermak, J. E., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherThe transport and dispersion of hydrogen sulfide plumes emanating from cooling towers located at three separate positions in the Geysers Geothermal Area were studied in the Colorado State University drainage flow and environmental wind tunnel facilities. The tests were performed utilizing 1:1920 scale models of the cooling towers and the terrain surrounding the Geysers Power Plant complex. Ground-level concentrations were measured along Big Sulphur Creek to study interaction of the cooling tower plumes with the natural drainage flow. Concentrations were also sampled at ground-level and vertically between the cooling towers and Anderson Springs at five different wind speeds and a predominantly west wind, under neutral conditions. Data obtained include velocity and temperature profiles, isopleths of ground-level concentration, vertical concentration distributions, and plume visualization photographs.Item Open Access Atmospheric transport of hydrogen sulfide from proposed geothermal power plant (units 13, 14, 16, and 18) for the west wind direction: predictions by physical modeling in a wind tunnel(Colorado State University. Libraries, 1977-11) Cermak, Jack E., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherTests were conducted in the Colorado State University environmental wind tunnel facility of the transport and dispersion of the H2S plume emanating from cooling towers positioned at four locations in the Geysers area. The wind tunnel tests were conducted with the cooling towers and terrain modeled to a scale of 1:1920. Ground-level concentrations were measured in the vicinity of Anderson Springs for selected wind speeds and one wind direction. Ground-level concentration patterns were established for each test condition studied. Data obtained include photographs and motion pictures of smoke plume trajectories as well as ground-level tracer gas concentrations downwind of the cooling towers.Item Open Access Circulation of vented gases around biomedical research facility(Colorado State University. Libraries, 1979) Cermak, Jack E., author; Petersen, Ronald L., author; Ayad, Samir Sobhy, author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherItem Open Access Evaluation of good engineering practice stack height at the ASARCO smelter, Hayden, Arizona: a physical modeling study(Colorado State University. Libraries, 1979) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Mechanics and Wind Engineering Program, College of Engineering, Colorado State University, publisherItem Open Access Physical modeling of atmospheric transport of stack emissions at Kahe Electrical Generating Plant (Units 9, 10, 11, 12, 13, and 14), Oahu, Hawaii(Colorado State University. Libraries, 1980) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherItem Open Access Physical modeling of plume dispersion at Alkali and Coal Creek, near Crested Butte, Colorado(Colorado State University. Libraries, 1980) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Mechanics and Wind Engineering Program, College of Engineering, Colorado State University, publisherItem Open Access Plume rise and dispersion: effects of exit velocity and atmospheric stability(Colorado State University. Libraries, 1977-06) Cermak, Jack E., author; Meroney, Robert N., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherPlume rise and dispersion was studied under stable and neutral stratification in an environmentally controlled wind tunnel. A 1:300 model of a power plant stack was constructed and positioned in the wind tunnel to assess the effect of exit velocity and temperature on plume rise and dispersion. The complete test scenario for each stability included five exit velocities (from 12.5 to 250 m/s), three exit temperatures (200, 366 and 422°K) and three stratifications (D, E and F). The exit velocity was varied by adding nozzles of different diameter to the stack top while maintaining a constant volume flow. Exit temperature variations were simulated by mixing equivalent density mixtures of helium and air. For each test case plume dispersion was assessed by traversing the plume at incremental altitudes and three downwind locations. Concentrations of the helium tracer gas were measured continuously with a Thermal Conductivity Gas Chromatograph. Plume rise was assessed using photographic techniques and by analyzing the concentration data. The results show the expected tendency for increased plume rise with increased exit velocity. More significant is the decrease in maximum centerline concentration at a given downwind distance when exit velocity increases. Curves comparing the standard plume dispersion model with the wind tunnel results are presented. Also present are the plume centerline trajectories for each case studied.Item Open Access Westvaco Paper Mill study(Colorado State University. Libraries, 1980) Petersen, Ronald L., author; Cermak, Jack E., author; Ghavam, Hamid Reza, author; Fluid Dynamics and Diffusion Laboratory, Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherItem Open Access Wind tunnel good engineering stack height study of the FCC COB stack at the Billings Exxon Refinery: final report(Colorado State University. Libraries, 1996-02) Neff, David E., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind-tunnel investigation of plume dispersion and transport over complex terrain for Colstrip Power Plant: stable stratification(Colorado State University. Libraries, 1979-02) Cermak, J. E., author; Petersen, Ronald L., author; Fluid Mechanics and Wind Engineering Program, Fluid Dynamics and Diffusion Laboratory, College of Engineering, Colorado State University, publisherA wind tunnel test over a 1:5000 scale model of the terrain in the vicinity of the Colstrip Power Plant, Rosebud County, Montana was performed. The tests were conducted under stable stratification and a tracer gas was released at two effective plume altitudes (381 and 476 m prototype) approximately 5.2 m (26 km prototype) upwind of Badger and Garfield Peaks. The resulting ground level concentration patterns were measured to assess the validity of the EPA Valley Model assumption of plume impaction on elevated terrain. The results of the study showed the Valey Model overpredicts ground level concentrations at Badger and Garfield Peaks by a factor ranging from 1.7 to 98.0 for the wind tunnel tests corresponding to Pasquill Gifford Stability Category E. Comparison of the Plume Dispersion Characteristics with the Pasquill Gifford Curves showed that the horizontal plume spread (σ y) was one category more stable then the vertical plume spread (σ z ) and both dispersion parameters were indicative of a stable plume.Item Open Access Wind-tunnel model dispersion tests of Kodak Park process emissions(Colorado State University. Libraries, 1979) Petersen, Ronald L., author; Cermak, Jack E., author; Fluid Mechanics and Wind Engineering Program, Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind-tunnel study of downwash at the Bay Shore Power Station(Colorado State University. Libraries, 1979-04) Cermak, J. E., author; Petersen, Ronald L., author; Fluid Mechanics and Wind Engineering Program, Fluid Dynamics and Diffusion Laboratory, College of Engineering, Colorado State University, publisherThe proposed Environmental Protection Agency stack height regulation gives regional administrators the authority to require a field or fluid modeling demonstration of an air quality problem due to downwash, wakes or eddies at existing sources. If the demonstration indicates the existence of an air quality problem then an existing source which increases its stack height may employ an empirical equation to determine the stack height credit it will receive. Since Toledo Edison is replacing its existing four stacks at the Bay Shore Power Station with one taller single stack, the requirement of the regulation seemingly must be satisfied before credit for the new stack is obtained. Toledo Edison contracted Colorado State University to conduct a fluid modeling investigation of the effect of structural generated downwash, wakes or eddies upon ground level concentrations. The tests were conducted using state of the art wind-tunnel testing procedures. Visualization and concentration measurements of the simulated plumes from the Bay Shore Power Station stacks were obtained for eight wind directions, three plant load conditions and one wind speed. For comparison several tests were run without the plant structure present. The results of the study show that the maximum concentration is in excess of the national ambient air quality standard for SO2 and is at least 40 percent in excess of the maximum concentration experienced in the absence of downwash, wakes, and eddy effects produced by nearby structures. The maximum concentration excess observed was approximately 650 percent.